Improvement in steam-gage cocks



UNITED STATES PATENT OEEIcE.

VICTOR GIROUD, OF NEW YORK, N. Y.

IMPROVEMENT IN STEAM-GAGE COCKS.

Specification forming part of Letters Patent No. 49,623, dated August29, 1865.

To all whom it may concern:

Be it known that I, Vrc'roa GIaoUD, ofthe city, county, and State of NewYork, have invented anew and useful Improvement in Cocks for lVater andSteam Gra ges and for other Purposes; and I do hereby declare that thefollowing is a full, clear, and exact description ofthe same, referencebeing had to thel accompanying drawings, forming a partot thisspecification, in which- Figure 1 isa longitudinal vertical section ofthe lower socket and cool; of a glass Watergage constructed according tomy invention. Fig. 2 is a vertical transverse section in the planeindicated by the line o: x in Fig. l.

Similar letters of reference indicate corresponding parts in bothigures.

This invention consists in a novel arrangement ot' passages in the pluglor spigot ot a cock, whereby, in its application to a water or pressuregage, it is made to serve the purpose ot' forming and closing thecommunication between the boiler or other vessel and the gage, and alsoprovide for blowing' out the socket or tube ot' the same, therebyobviatin g the necessity ot' a separate cock for blowing out, and ismade to blow out the water or steam in such direction as will not beproductive of injury to the engineer or fireman, or to surroundingarticles or structures.

In order to instruct others skilled in the art to construct and use myinvention, I will proeeed to describe it with reference to the drawingsand letters thereon.

The ordinary construction ot' a cock for a water or pressure gage isprovided with a plug, A, which is furnished with the two ways a and a,the former of which runs through the plug in a direction perpendicularto its axis. This way forms the through-communication, when open, withthe boiler or vessel to which it is attached andthe gage. The secondway,

a, commences in the same line of rotation, and the center of itsapertureis at au angle ofniuety degrees to the way c, and runs obliquelytoward the center ot' rotation ofthe plug, and alters its course by abend, the latter part ot' which runs parallel and concentric with thelinear center of the plug, and opens outward to the air upon the sideofthe gage through the plug A. This arrangement of ways preventsthewater, steam, or sediment which may be blown out from comingincontact with the person attending to it., as it would it it were blownout forward of the gage, or at its lower part, in a vertical descendingdirection.

The plug A is represented in a position for the passage a' to form acommunication betweeuthe boiler or other vessel and the tube ofthe gage.The way a is broughtinto communication with the glass or tube ot' thegage and the atmosphere by turning the plug A the distance ot' aquarter-circle from the position above described tothe right, bringingthe handle or lever ot' the plug into an upright position 5 and to makea communication with the boiler or other vessel and the atmosphere theplug A must occupy a position directly opposite to that last described.This description relates exclusively to the bottom cock ot` awater-gage. The same arrangement will apply to the upper cock, exceptingthe motions ofthe plug, which will be reversed orin a contrarydirection.

This cock is not conlined in its uses simply to water-gages uponsteam-boilers, but may be applied to any water or steam fixture wheresuch an arrangement is necessary.

Vhat I claim as my invention, and desire to secure by Letters Patent, is

The arrangement of the way a, as herein described, in relation to theway a in the plug ot' the cock, for the purpose herein set forth.

V. GIROUD.

Witnesses:

* J. W. Goonies,

Gao. W. REED.

